dcd05d13ce
git-svn-id: http://svn.openlayers.org/tags/openlayers/release-2.4-rc5@3182 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
/* Copyright (c) 2006 MetaCarta, Inc., published under the BSD license.
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* See http://svn.openlayers.org/trunk/openlayers/release-license.txt
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* for the full text of the license. */
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/**
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* @class
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*
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* A Curve is a MultiPoint, whose points are assumed to be connected. To
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* this end, we provide a "getLength()" function, which iterates through
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* the points, summing the distances between them.
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*
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* @requires OpenLayers/Geometry/MultiPoint.js
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*/
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OpenLayers.Geometry.Curve = OpenLayers.Class.create();
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OpenLayers.Geometry.Curve.prototype =
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OpenLayers.Class.inherit(OpenLayers.Geometry.MultiPoint, {
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/**
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* An array of class names representing the types of components that
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* the collection can include. A null value means the component types
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* are not restricted.
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* @type Array(String)
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*/
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componentTypes: ["OpenLayers.Geometry.Point"],
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/**
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* @constructor
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*
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* @param {Array(OpenLayers.Geometry.Point)} points
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*/
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initialize: function(points) {
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OpenLayers.Geometry.MultiPoint.prototype.initialize.apply(this,
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arguments);
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},
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/**
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* @returns The length of the curve
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* @type float
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*/
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getLength: function() {
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var length = 0.0;
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if ( this.components && (this.components.length > 1)) {
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for(var i=1; i < this.components.length; i++) {
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length += this.components[i-1].distanceTo(this.components[i]);
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}
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}
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return length;
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},
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/** @final @type String */
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CLASS_NAME: "OpenLayers.Geometry.Curve"
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});
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